High risk pregnancy

Au

Is anyone else considered high risk because their previous pregnancy was early due to water breaking early. My son (1st pregnancy was 40 weeks). My daughter was 30 weeks (she was 5 lbs and didn’t need ICU). With this pregnancy they want to give me Mekena shots and then I go to a high risk prenatal dr. What are your experiences with the shots , and has anyone made it full term after delivering early with their previous pregnancy? I’m so nervous all the time now.